Add pagination to a Wordpress plugin

I'm trying to add pagination to the Wordpress plugin, FV Community News. You can see it functioning (without pagination and in its early stages - released it yesterday) here - http://www.siiimple.com/news. I looked back in the php that would likely involve alterations, and here is the section I believe I would have to work with:

I have the same problem as you. I have a plugin that creates a string with real estates. I tried to use the tag <! - NextPage ->. I put him every tenth realty. But it does not work. In the source code of the resulting page is <!--NextPage--> only like a commented text. You can try something like me, but it does not work for me. Maybe you will have more lucky :)).